CVE-2026-97588

Summary

In the Linux kernel, the following vulnerability has been resolved:

s390/crypto: Map EBUSY to EIO when key conversion fails repeatedly

When hardware persistently returns -EBUSY after exhausting retries, the error propagates to crypto_finalize_*_request(). The crypto API's completion wrapper treats -EBUSY as a queueing status and swallows it, preventing the completion callback from firing. This causes callers using crypto_wait_req() to block indefinitely.

Translate persistent -EBUSY to -EIO after retry exhaustion to ensure proper error propagation and callback invocation.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux6cd87cb5ef6ca50ae17c371482ceaab1d635e232 < f6b263679aa72ad2e534bf93db55f2589549a40eaffected
LinuxLinux6cd87cb5ef6ca50ae17c371482ceaab1d635e232 < e267bd142664a181474112392aeaa8b3d4b12f2eaffected
LinuxLinux6cd87cb5ef6ca50ae17c371482ceaab1d635e232 < 7a08507ea5b4d06ad8d269287913573f34467565affected
LinuxLinux6.16affected
LinuxLinux0 < 6.16unaffected
LinuxLinux6.18.53 <= 6.18.*unaffected
LinuxLinux7.2.7 <= 7.2.*unaffected
LinuxLinux7.3-rc3 <= *unaffected

Weaknesses

References